The current study aims at improving the performance level of some acrobatic elements of gymnastics performers on the balance beam through plyometry training to improve the explosive power of leg muscles. Study was performed on a randomly chosen sample of 8 female gymnastics performers of Smoha Sports Club, registered in the Egyptian Federation of Gymnastics season 2009-2010 for first and second class. The researcher used the experimental approach with one group (pre-, intermediate and post-tests). The training program took (8) weeks (3 training units per week). Results showed that the recommended training program led to improving the explosive power of leg muscles as the percentages of improvement were as follows: 3.5%- 12.34% for pre/intermediate tests, 2.79% - 16.22% for intermediate/post-tests and 6.4% - 30.41% for pre-/posttests. Also, the recommended training program led to improving the performance level of acrobatic elements under investigation as the percentages of improvement were as follows: 10.66% - 13.11% for pre/intermediate tests, 10.99% - 12.29% for intermediate/post-tests and 22.82 - 27% for pre-/post- tests. These results indicate that using the recommended plyometry training program improved the explosive power of leg muscles and performance level.
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